[ 
https://issues.apache.org/jira/browse/YARN-3983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650128#comment-14650128
 ] 

Hadoop QA commented on YARN-3983:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch |  15m 37s | Findbugs (version ) appears to 
be broken on trunk. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to 
include 1 new or modified test files. |
| {color:green}+1{color} | javac |   7m 47s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |  10m  4s | There were no new javadoc 
warning messages. |
| {color:red}-1{color} | release audit |   0m 20s | The applied patch generated 
1 release audit warnings. |
| {color:green}+1{color} | checkstyle |   0m 26s | There were no new checkstyle 
issues. |
| {color:red}-1{color} | whitespace |   0m  4s | The patch has 17  line(s) that 
end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 25s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 27s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:red}-1{color} | yarn tests |  52m 51s | Tests failed in 
hadoop-yarn-server-resourcemanager. |
| | |  90m 39s | |
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|| Reason || Tests ||
| Failed unit tests | 
hadoop.yarn.server.resourcemanager.scheduler.fair.TestAllocationFileLoaderService
 |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12748251/YARN-3983.3.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / d311a38 |
| Release Audit | 
https://builds.apache.org/job/PreCommit-YARN-Build/8745/artifact/patchprocess/patchReleaseAuditProblems.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-YARN-Build/8745/artifact/patchprocess/whitespace.txt
 |
| hadoop-yarn-server-resourcemanager test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8745/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/8745/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf904.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP 
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/8745/console |


This message was automatically generated.

> Make CapacityScheduler to easier extend application allocation logic
> --------------------------------------------------------------------
>
>                 Key: YARN-3983
>                 URL: https://issues.apache.org/jira/browse/YARN-3983
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-3983.1.patch, YARN-3983.2.patch, YARN-3983.3.patch
>
>
> While working on YARN-1651 (resource allocation for increasing container), I 
> found it is very hard to extend existing CapacityScheduler resource 
> allocation logic to support different types of resource allocation.
> For example, there's a lot of differences between increasing a container and 
> allocating a container:
> - Increasing a container doesn't need to check locality delay.
> - Increasing a container doesn't need to build/modify a resource request tree 
> (ANY->RACK/HOST).
> - Increasing a container doesn't need to check allocation/reservation 
> starvation (see {{shouldAllocOrReserveNewContainer}}).
> - After increasing a container is approved by scheduler, it need to update an 
> existing container token instead of creating new container.
> And there're lots of similarities when allocating different types of 
> resources.
> - User-limit/queue-limit will be enforced for both of them.
> - Both of them needs resource reservation logic. (Maybe continuous 
> reservation looking is needed for both of them).
> The purpose of this JIRA is to make easier extending CapacityScheduler 
> resource allocation logic to support different types of resource allocation, 
> make common code reusable, and also better code organization.



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